Štefan Znám

His ErdÃ âs number is 2 by at least six different paths. For example, in 1968, ZnÃÂ¡m wrote a paper on ”Strongly geodetic graphs” with Juraj BosÃÂ¡k in the Journal of Combinatorial Theory. Three years later, BosÃÂ¡k co-authored ”Decompositions of complete graphs into factors with diameter two” with ErdÃ âs and Alexander Rosa in Mathematics Casopis Slovene Akademie Vied.